Tegan Joshua Anthony Chambers (born December 20, 1999), known professionally as Sleepy Hallow, is an American rapper who specializes in Brooklyn drill. Born in Jamaica, Chambers was raised in the Flatbush section of Brooklyn, New York City alongside frequent collaborator Sheff G.

Signing with Winners Circle Entertainment in 2019, the label entered a joint venture with RCA Records the following year. Chambers first saw recognition for his 2019 single, "Flows" (with Sheff G). His 2020 single, "Deep End Freestyle" (featuring Fousheé) received platinum certification by the Recording Industry Association of America (RIAA) and marked his first entry on the Billboard Hot 100. His 2021 single, "2055" peaked at number 51 on the chart.